Umbra-Bookshelf/bd-bookshelf-plugin/bd-bookshelf.php

<?php
/**
 * Plugin Name: BD Bookshelf
 * Plugin URI: https://authorbdmurphy.com/plugins/bd-bookshelf
 * Description: Book management plugin for authors with ISBN tracking, retail links, rating synchronization, and series management.
 * Version: 0.1.0
 * Author: B.D. Murphy
 * Author URI: https://authorbdmurphy.com
 * License: GPLv2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: bd-bookshelf
 * Domain Path: /languages
 * Requires at least: 6.0
 * Requires PHP: 7.4
 */

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Plugin constants
 */
define('BD_BOOKSHELF_VERSION', '0.1.0');
define('BD_BOOKSHELF_DIR', plugin_dir_path(__FILE__));
define('BD_BOOKSHELF_URL', plugin_dir_url(__FILE__));
define('BD_BOOKSHELF_BASENAME', plugin_basename(__FILE__));

/**
 * Include files
 */
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-database.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-book-manager.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-authors.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-series.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-retail-sites.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-rating-sync.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-shortcodes.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-seo.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-gdpr.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-goodreads-scraper.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-amazon-scraper.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-admin.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-migration.php';
require_once BD_BOOKSHELF_DIR . 'includes/class-bdm-theme-compatibility.php';

/**
 * Main plugin class
 */
final class BD_Bookshelf {

    /**
     * Single instance of the class
     */
    private static $instance = null;

    /**
     * Get single instance
     */
    public static function instance() {
        if (is_null(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    /**
     * Constructor
     */
    private function __construct() {
        $this->init_hooks();
    }

    /**
     * Initialize hooks
     */
    private function init_hooks() {
        register_activation_hook(__FILE__, [$this, 'activate']);
        register_deactivation_hook(__FILE__, [$this, 'deactivate']);
        
        add_action('init', [$this, 'init']);
        add_action('plugins_loaded', [$this, 'plugins_loaded']);
        
        // Initialize components
        add_action('init', [$this, 'init_components']);
    }

    /**
     * Plugin activation
     */
    public function activate() {
        $database = new BDM_Database();
        $database->create_tables();
        
        // Flush rewrite rules
        flush_rewrite_rules();
        
        // Store activation time
        update_option('bd_bookshelf_activation_time', current_time('timestamp'));
    }

    /**
     * Plugin deactivation
     */
    public function deactivate() {
        // Clear scheduled events
        wp_clear_scheduled_hook('bd_bookshelf_sync_ratings');
        
        // Flush rewrite rules
        flush_rewrite_rules();
    }

    /**
     * Init hook
     */
    public function init() {
        // Load text domain
        load_plugin_textdomain('bd-bookshelf', false, dirname(BD_BOOKSHELF_BASENAME) . '/languages');
    }

    /**
     * Plugins loaded hook
     */
    public function plugins_loaded() {
        // Check for updates, etc.
    }

    /**
     * Initialize components
     */
    public function init_components() {
        // Initialize admin
        if (is_admin()) {
            new BDM_Admin();
            new BDM_Migration();
        }

        // Initialize public facing features
        new BDM_Shortcodes();
        new BDM_GDPR();

        // Initialize rating sync (cron)
        new BDM_Rating_Sync();
    }
}

/**
 * Initialize plugin
 */
function bd_bookshelf() {
    return BD_Bookshelf::instance();
}

// Start the plugin
bd_bookshelf();